Render Image output renders correctly but Render Animation output is incorrect. #46679

New Issue

Bryson Jack · 2015-11-02T21:34:29+01:00

Bryson Jack commented

2015-11-02 21:34:29 +01:00

I made a test scene to develop a workflow for dividing up a Cycles animation into separate render layers, rendering them out and recombining them.

I noticed as I was putting everything back together that the frames from the render layers with masking, that were rendered with Render Animation (Ctrl+F12) have all kinds of inaccuracies where the masking is wrong, but when I re-render the messed up frame with Render Image (F12) the bad frame is suddenly rendered correctly. What is even more perplexing is that the mistakes are not consistent. When I re-render with Render Animation (Ctrl+F12), the errors can appear on different frames and other previously inaccurate frames can get fixed.

I am even getting these errors when I Load Factory Settings and then open the scene.

I posted this on Blender Stack Exchange and no one has any answers but one user was able to reproduce and confirm the problem (see comments)
http://blender.stackexchange.com/questions/40758/why-is-my-render-image-output-correct-but-my-render-animation-output-is-incorrec

Blend file is here:
https://dl.dropboxusercontent.com/u/6647893/Forum_Help/Render_Layer_Animation_Test2.zip

I made a test scene to develop a workflow for dividing up a Cycles animation into separate render layers, rendering them out and recombining them. I noticed as I was putting everything back together that the frames from the render layers with masking, that were rendered with Render Animation (Ctrl+F12) have all kinds of inaccuracies where the masking is wrong, but when I re-render the messed up frame with Render Image (F12) the bad frame is suddenly rendered correctly. What is even more perplexing is that the mistakes are not consistent. When I re-render with Render Animation (Ctrl+F12), the errors can appear on different frames and other previously inaccurate frames can get fixed. I am even getting these errors when I Load Factory Settings and then open the scene. I posted this on Blender Stack Exchange and no one has any answers but one user was able to reproduce and confirm the problem (see comments) http://blender.stackexchange.com/questions/40758/why-is-my-render-image-output-correct-but-my-render-animation-output-is-incorrec Blend file is here: https://dl.dropboxusercontent.com/u/6647893/Forum_Help/Render_Layer_Animation_Test2.zip

Bryson Jack commented

2015-11-02 21:34:30 +01:00

Changed status to: 'Open'

Bryson Jack commented

2015-11-02 21:34:30 +01:00

Added subscriber: @BrysonJack

Bryson Jack commented

2015-11-02 21:39:49 +01:00

CPU: Intel Core i5-2500K CPU @ 3.30GHz
GPU: GeForce GTX 560 Ti, 1GB Dedicated Video Memory (2 cards)
RAM: 8.00 GB
OS: Windows 7 Pro, Service Pack 1
Drivers: NVIDIA 358.50
Blender: 2.76 Date: 2015-10-11 06:55 Hash: 48f7dd6

https://dl.dropboxusercontent.com/u/6647893/Forum_Help/system-info.txt.txt

CPU: Intel Core i5-2500K CPU @ 3.30GHz GPU: GeForce GTX 560 Ti, 1GB Dedicated Video Memory (2 cards) RAM: 8.00 GB OS: Windows 7 Pro, Service Pack 1 Drivers: NVIDIA 358.50 Blender: 2.76 Date: 2015-10-11 06:55 Hash: 48f7dd6 https://dl.dropboxusercontent.com/u/6647893/Forum_Help/system-info.txt.txt

Aaron Carlisle self-assigned this 2015-11-02 21:49:13 +01:00

Aaron Carlisle removed their assignment 2015-11-02 21:50:07 +01:00

Sergey Sharybin commented

2015-11-03 12:25:28 +01:00

Added subscriber: @Sergey

Sergey Sharybin commented

2015-11-03 12:25:28 +01:00

I can't really reproduce the issue. Please try isolating circumstances which affects on this. For example:

Try other computer
Try rendering on CPU or GPU
Try rendering from the command line
Try rendering with single thread only

I can't really reproduce the issue. Please try isolating circumstances which affects on this. For example: - Try other computer - Try rendering on CPU or GPU - Try rendering from the command line - Try rendering with single thread only

Carlo Andreacchio commented

2015-11-03 12:43:24 +01:00

Added subscriber: @candreacchio

Carlo Andreacchio commented

2015-11-03 12:43:24 +01:00

Just looked into it, i can reproduce it. CPU and GPU both are effected

Simple scene here -- simpleTest.blend

Render animation, notice how the mask object is static, scrub the timeline and the mask object is moving.

tested on git df61c50ffa

Just looked into it, i can reproduce it. CPU and GPU both are effected Simple scene here -- [simpleTest.blend](https://archive.blender.org/developer/F250280/simpleTest.blend) Render animation, notice how the mask object is static, scrub the timeline and the mask object is moving. tested on git df61c50ffae9463eafb30b7a3e23b4fcaaca7dbf

Sergey Sharybin commented

2015-11-03 12:54:34 +01:00

To me the mask object is totally static.

Please test command line option and rendering with a single thread.

To me the mask object is totally static. Please test command line option and rendering with a single thread.

Carlo Andreacchio commented

2015-11-03 13:05:04 +01:00

The mask object (cone) should be moving, it has animation on it (viewable in the viewport)

Rendering via commandline produced the same incorrect result.

Tried to render with the depsgraph with a single thread but couldnt figure out the command argument

With the debugging turned on, it looks like it was only recalculating the Cubes location instead of the Cube and Cone.

The mask object (cone) should be moving, it has animation on it (viewable in the viewport) Rendering via commandline produced the same incorrect result. Tried to render with the depsgraph with a single thread but couldnt figure out the command argument With the debugging turned on, it looks like it was only recalculating the Cubes location instead of the Cube and Cone.

Sergey Sharybin commented

2015-11-03 13:30:30 +01:00

Ah ok, got it now.

Campbell Barton commented

2015-12-07 04:25:31 +01:00

Added subscriber: @ideasman42

Campbell Barton commented

2015-12-07 04:25:31 +01:00

Looked into this, the layers that are excluded aren't updating.

This patch resolves the bug by updating mask layers even when exclude is enabled - P297,
though I'm not familiar with this area - and how its expected to work when exclude is mixed with mask.

Related commit, 09b34e69d4

Looked into this, the layers that are excluded aren't updating. This patch resolves the bug by updating mask layers even when exclude is enabled - [P297](https://archive.blender.org/developer/P297.txt), though I'm not familiar with this area - and how its expected to work when exclude is mixed with mask. Related commit, 09b34e69d4

Sergey Sharybin was assigned by Bastien Montagne

2016-01-22 12:12:46 +01:00

Bastien Montagne commented

2016-01-22 12:12:46 +01:00

Added subscriber: @mont29

blender-admin commented

2016-01-26 13:31:47 +01:00

This issue was referenced by e4c83bc345

This issue was referenced by e4c83bc3459847c33269557499cc891ed4f747af

Campbell Barton commented

2016-01-26 13:32:19 +01:00

Changed status from 'Open' to: 'Resolved'

Campbell Barton closed this issue

2016-01-26 13:32:19 +01:00

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Render Image output renders correctly but Render Animation output is incorrect. #46679